- A52.5
- B55
- C56
- D54
Step-by-Step Solution
Time = 100/50 + 120/60 = 2 + 2 = 4 hours for total 220 km. Average speed = 220 ÷ 4 = 55 km/h.
Answer: B) 55
A person travels the first 100 km at 50 km/h and the next 120 km at 60 km/h. What is the average speed for the entire journey in km/h?
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